* In order to be able to produce angled caps made of soft PVC reliably, we require a Minimum wall thickness of 1.5 mm.
The essential Advantages dipped angle caps are both their quick and Easy to install as well as their Captive hold on sheet metal and folded profiles as well as angle iron.
In contrast to hard plastics such as Polyethylene (PE for short) or Polypropylene (PP for short)are the rubber-flexible Covytec ® soft PVC types the ideal material for the Use as transport protection caps, bearing protection caps and end caps.
The shock-absorbing properties of the PVC used and the choice of a signal colour make corner caps just as much a part of the profile geometry as individually adapted corner caps. Edge protection caps to products in the field of occupational safety. They greatly reduce the risk of injury from sharp-edged or solid profile ends protruding freely into the room.
The production of angle caps using the dipping process is very interesting from an economic point of view because, in contrast to injection moulding, only simple and therefore inexpensive dipping tools need to be provided for production. The dipping moulds are heated in an oven and dipped into a bath of liquid PVC. When the hot moulding tool comes into contact with the PVC paste, also known as plastisol, a skin forms on the outer contour of the shaping cores, which forms the desired wall thickness of the angle caps by the end of a defined dwell time in the dipping bath.
The wall thickness to be achieved depends on the temperature of the mould, the dwell time of the mould in the dip tank and the viscosity of the PVC material. The usable height of the protective caps is controlled by the immersion depth of the right-angled mould cores.
After removing the dipping mould from the dipping bath, the excess PVC material runs and drips off, whereby flow marks and drop formation at the closed end of the rectangular caps cannot be avoided.
The multi-cavity mould with the PVC layer is then heated again to achieve the rubber-elastic properties of the PVC material. This work step is often referred to as gelling.
After cooling, the angle caps are removed from the cores manually using an auxiliary tool
*Light colours that are exposed to outdoor weathering can be made UV-stable by adding a formulation ingredient. Dark colours such as black and anthracite grey are generally UV-resistant.
As both the base material (PVC plastisol) and a UV stabiliser have a yellowish inherent colour, the accuracy of the RAL colour shade is minimally affected. We confirm the colour shade similar to the RAL number.
The standard soft PVC used by HAMCO from the Covytec® material series, which is processed in 68 Shore A as standard, but also in other degrees of hardness, has a high degree of hardness regardless of the selected hardness. Standard or special colour has sufficient elasticity for secure installation.
We manufacture dipped protective caps for folded sheet metal, drawn aluminium profiles and profile strips from existing or newly manufactured dipping tools for angle caps according to individual customer specifications. With the already available Dimensions according to product table the two side lengths are slightly undersized. The groove width sB corresponds to the sheet thickness or profile wall thickness.
The flexibility of the Covytec® PVC materials ultimately ensures that the barely noticeable expansion is immediately reversed after installation and the technically smooth inner contour of the PVC angle caps moulds itself to the wall of the profile end to be protected.
can be realised. In dialogue with our customers' responsible contact persons from the purchasing, technology, design and development departments, we determine which Priorities and wishes from their point of view.
A simple structure of the Dipping toolsespecially with customised dimensions ensures that we can offer you the best possible service with our excellently equipped In-house toolmaking measurable Cost and time benefits in the realisation.
An important prerequisite that may need to be taken into account from the environment of the food industry is the detectability of the PVC material used in the Blog post Detectable caps is discussed in detail.
The Wall thickness is measured non-destructively at the open end of the cap.
Due to the process, it continuously increases towards the closed end of the immersed caps.
Drain marks and drain drops At the closed end, they cannot be completely avoided due to the nature of the process.
In your role as a strategic buyer, as a contact person in the design and development department, as a technician, quality engineer, production or operations manager, you are involved in other areas of the company, detailed information about the process of PVC dipped parts production interested?
On the product pages of the PVC round capsthe Rectangular caps, the product page of the Coating of metallic components and in the knowledge section under Manufacturing processes we provide detailed information including generally applicable design, assembly and quality instructions.
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To reading sample
| A | B | sB | max. height | s |
|---|---|---|---|---|
| 12,5 | 12,5 | 2,0 | 40 | 1,5 |
| 25,0 | 40,0 | 4,0 | 25 | 1,5 |
| 30,0 | 30,0 | 3,0 | 25 | 1,5 |
| 30,0 | 30,0 | 4,0 | 25 | 1,5 |
| 36,0 | 36,0 | 2,0 | 25 | 1,5 |
| 36,0 | 36,0 | 4,0 | 25 | 1,5 |
| 38,0 | 38,0 | 1,5 | 20 | 1,5 |
| 40,0 | 60,0 | 5,0 | 30 | 1,5 |
| 50,0 | 50,0 | 1,5 | 45 | 1,5 |
Large and small quantity requirements Direct processing
Large and small quantity requirements
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